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Monitoring Bird Populations by Point Counts
Point counts of birds are the most widely used quantitative method and involve an observer recording birds from a single point for a standardized time period. In response to the need for standardization of methods to monitor bird populations by census, researchers met to present data from various investigations working under a wide variety of conditions, and to examine various aspects of point count methodology. Statistical aspects of sampling and analysis were discussed and applied to the objectives of point counts. The final chapter presents these standards and their applications to point count methodology.
Bird Populations (Collins New Naturalist Library, Book 124)
In the latest addition to the New Naturalist series, Ian Newton explores bird populations and what causes their fluctuation – food supplies, competitors, predators, parasites, pathogens and human activity.
Bird Population Studies
There are more than one thousand species of threatened birds in the world, while many others are valued for sport and some are serious pests. This volume reviews our current understanding of avian population dynamics and explores ways in which population studies can contribute to effective conservation and management. Estimation of demographic parameters, the role of mathematical modelling, and the special problems of island populations and seabird populations are discussed. The emphasis throughout is on how bird populations are regulated under various constraints and conditions, including the impact of environmental changes.
Population Limitation in Birds
This book meets the demand for a comprehensive introduction to understanding the processes of population limitation. Recognized world-wide as a respected biologist and communicator, Dr. Ian Newton has now written a clear and detailed treatise on local scale population limiting factors in birds. It is based almost entirely on results from field studies, though it is set in a contemporary theoretical framework. The 16 chapters fall under three major section headings: Behavior and Density Regulation; Natural Limiting Factors; and Human Impacts. Population Limitation in Birds serves as a needed resource expanding on Dr. David Lacks research in this area of ornithology in the 1950s. It includes numerous line diagrams and beautiful illustrations by acclaimed wildlife artist Keith Brockie. Provides a sorely needed introduction to a long-established core subject in ornithology Focuses on local scale factors Written by a well-known biologist and effective communicator Includes numerous line diagrams and beautiful illustrations by acclaimed wildlife artist Keith Brockie
Population Trends in British Breeding Birds
Brings together the results of monitoring schemes organised by the BTO since the early 1960s to track the changing fortunes of Britain's breeding bird populations, and presents an insight into the health of our breeding bird populations. This title covers some 164 species, with graphs of population changes for two-thirds of them.
Bird Conservation and Agriculture
This gripping and chillingly realistic novel from "New York Times" bestselling author Sharon Draper shows that all it takes is one bad decision for everything to change. Diamond knows not to get into a car with a stranger. But what if the stranger is well-dressed and handsome? On his way to meet his wife and daughter? And casting a movie that very night--a movie in need of a star dancer? What then? Then Diamond might make the wrong decision. It's a nightmare come true: Diamond Landers has been kidnapped. She was at the mall with a friend, alone for only a few brief minutes--and now she's being held captive, forced to endure horrors beyond what she ever could have dreamed, while her family and friends experience their own torments and wait desperately for any bit of news. From "New York Times "bestselling author Sharon Draper, this is a riveting exploration of power: how quickly we can lose it--and how we can take it back.
Farming and Birds
This attractively illustrated book reviews the effects of agricultural development on bird populations in Britain. Examining modern farmland as a bird habitat, it explains the changes, both in habitat structure and in available resources, that have occurred as a result of mechanisation and use of agrochemicals. Farmland bird communities are described, and their composition related to farm structure and land use. Based extensively on empirical data extracted from the British Trust for Ornithology's Common Bird Census and from nest histories recorded in the BTO'S Nest Record Scheme, the book presents an important analysis of the position of agricultural bird populations under modern farming systems. Particular examination has been made of the impact of changing methods, rotations and crops, which have been underestimated in the past. Resulting from the co-operation between a professional ornithologist and a working cereal farmer, this book provides an objective and informed view of the impact of British agriculture on bird populations.
